Central Zagros

Alashtar is one of the prominent valley plains in central Zagros Mountain Range. The main focus of this study is based on the activities performed in this plain in 2006-2007 periods with the aim of identifying and studying the ancient relics as well as the studies conducted in 2010 to identify and analyze Parthian settlement patterns in this area. Archaeological survey in the area identified 72 historical sites and ancient monument. The current studies suggest that first settlements in this area date back to Copper and Stone Age and the most recent settled sites belong to the later centuries of the Islamic period. Among the historical relics found in Alashtar plain, 42 relics contained remnants of the Parthian. The overall perception of the settlement pattern in this plain during Parthian period reflects variation in population or distribution of settlement patterns compared to the former and later periods. The distribution pattern of the identified historical sites suggests that the settlements were mainly in the form of rural units with no evidence of urban centers. Overall, the distribution pattern of Parthian settlements has been strongly influenced by climatic characteristics, environmental capabilities and the special geographical position of the region. This paper attempts to study the Parthian settlement pattern in this plain; moreover, it seeks to examine these historical sites and interpret the settlement patterns in the Parthian period.

An insight into the geomorphological characteristics of Holeylan as well as its suitable environment in the Central Zagros convince us that it has a capacity, more than ever shown, in presenting Paleolithic sites. Thus, the necessity of doing an intensive archaeological survey in this valley with the aim to explore the Paleolithic sites became apparent and was achieved only in the autumn of 2015. The research questions are mainly based on the number of sites, their type and size, geographical variables influencing the site selection patterns among the Paleolithic societies, tool making techniques and identifying raw material sources in Holeylan. During the survey, 103 sites, including 24 caves and rock shelters as well as 79 open air sites were identified with utilities such as residential compounds, seasonal camps and hunting ambushes. Among them, only one of the rock shelters was situated in the eastern most part of the valley. The open air sites formed on the natural hill tops with terraces overlooking Seymareh and Jezman Rivers and their tributaries. Climate and tectonic features seem to be the two main reasons that made Holeylan as one of the most important valleys of central Zagros during the Paleolithic era. Moreover, water resources and its elevation above the sea level were the most important components which led settlements access to raw materials. Chert pebbles and cobbles accumulated in the bed by rivers were resources of tool making in Holeylan Valley during the Paleolithic period.